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Device information for brine-to-water heat pumps for heating purposes SI 14TE - SI 21TE
1 Type and order code SI 14TE SI 17TE SI 21TE
2Design
2.1 Degree of protection according to EN 60 529 IP 20 IP 20 IP 20
2.2 Installation Location Indoors Indoors Indoors
3 Performance data
3.1 Operating temperature limits:
Heating water flow °C Up to 58 Up to 58 Up to 58
Brine (heat source) °C -5 to +25 -5 to +25 -5 to +25
Antifreeze Mono-ethylene glycol Mono-ethylene glycol Mono-ethylene glycol
Minimum brine concentration (-13 °C freezing temperature) 25% 25% 25%
3.2 Temperature spread of heating water (flow/return flow)
at B0 / W35 K 9.6 5.0 9.3 5.0 11.3 5.0
3.3 Heat output / COP at B-5 / W55 1kW / --- 12.5 / 2.6 14.4 / 2.6 17.9 / 2.5
at B0 / W45 1kW / --- 14.1 / 3.5 16.2 / 3.4 19.8 / 3.2
at B0 / W50 1kW / --- 14.2 / 3.4 16.7 / 3.2 20.4 / 3.1
at B0 / W35 1kW / --- 14.5 / 4.5 14.4 / 4.3 17.1 / 4.6 16.9 / 4.4 21.1 / 4.3 20.8 / 4.1
3.4 Sound power level dB(A) 56 58 59
3.5 Heating water flow with an internal pressure differential of m³/h / Pa 1.3 / 4800 2.5 / 17600 1.5 / 4000 2.9 / 15000 1.6 / 4600 3.6 / 23000
3.6 Brine throughput with an internal pressure
differential (heat source) of m³/h / Pa 3.5 / 20000 3.3 / 18000 3.8 / 18000 3.8 / 18000 5.5 / 10000 5.4 / 9800
3.7 Refrigerant; total filling weight type / kg R407C / 2.1 R407C / 2.3 R407C / 4.5
3.8 Lubricant; total filling weight type / litres Polyolester
(POE) / 1.95
Polyolester
(POE) / 1.77
Polyolester
(POE) / 4.1
4 Dimensions, connections and weight
4.1 Device dimensions without connections 2H x W x L mm 805 × 650 × 462 805 × 650 × 462 1445 × 650 × 575
4.2 Device connections to heating system Inch G 1¼" external G 1¼" external G 1¼" external
4.3 Device connections to heat source Inch G 1¼" external G 1¼" external G 1½" external
4.4 Weight of the transportable unit(s) incl. packing kg 130 133 225
5 Electrical Connection
5.1 Nominal voltage; fuse protection V / A 400 / 16 400 / 16 400 / 20
5.2 Nominal power consumption 1 B0 W35 kW 3.22 3.37 3.72 3.86 4.91 5.10
5.3 Starting current with soft starter A 26 27 29
5.4 Nominal current B0 W35 / cos ϕA / --- 5.81 / 0.8 6.08 / 0.8 6.35 / 0.8 6.64 / 0.8 8.86 / 0.8 9.2 / 0.8
6 Complies with the European safety regulations 333
7 Additional model features
7.1 Water in device protected against freezing 4Yes Yes Yes
7.2 Performance levels 111
7.3 Controller internal/external Internal Internal Internal
1. This data indicates the size and capacity of the system. For an analysis of the economic and energy efficiency of the system, both the bivalence point and the regulation should
also be taken into consideration. The specified values, e.g. B10 / W55, have the following meaning: Heat source temperature 10 °C and heating water flow temperature 55 °C.
2. Note that additional space is required for pipe connections, operation and maintenance.
3. See CE declaration of conformity
4. The heat circulating pump and the heat pump manager must always be ready for operation.
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